New oxygen monitor tested in spinal anesthesia study
NCT ID NCT06566690
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This completed study looked at whether a new monitoring tool called Oxygen Reserve Index (ORi) can give earlier warning of low oxygen levels in patients having varicose vein surgery under spinal anesthesia. The study included 56 adults and compared standard oxygen monitoring with ORi monitoring. The goal was to see if ORi could help doctors adjust oxygen therapy more precisely and prevent both too little and too much oxygen.
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Study facts
What this study's own registry entry says, in plain language.
- Participants
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56 people
The number who actually took part.
- Started
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Aug 2024
- Finished
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Mar 2026
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
This study aims to include ASA I-II patients aged 18-65 years scheduled for elective varicose vein surgery, with the sample size to be determined by a pilot study
- Ages
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18 to 65 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: \- ASA I-II Exclusion Criteria: * Chronic Obstructive Pulmonary Disease (COPD) * Smoking history of \>30 pack-years * Cancer patients * Interstitial lung disease patients * Patients with Body Mass Index (BMI) \>30 kg/m² * Patient refusal of spinal anesthesia * Refusal to participate in the study
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Kocaeli University
Kocaeli, Turkey (Türkiye)
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Other studies related to the condition(s) this trial covers.
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